<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <title>基于display列合并表格</title>
  <style type="text/css">
    .table,
    .table * {
      margin: 0 auto;
      padding: 0;
      font-size: 14px;
      font-family: Arial, 宋体, Helvetica, sans-serif;
    }

    .table {
      display: table;
      width: 80%;
      border-collapse: collapse;
    }

    .table-tr {
      display: table-row;
      height: 30px;
    }

    .table-th {
      display: table-cell;
      font-weight: bold;
      height: 100%;
      border: 1px solid gray;
      text-align: center;
      vertical-align: middle;
      background-color: #E5E5E5;
    }

    .table-td {
      display: table-cell;
      height: 100%;
    }

    .sub-table {
      width: 100%;
      height: 100%;
      display: table;
    }

    .sub-table-tr {
      display: table-row;
      height: 100%;
    }

    .sub-table-td {
      display: table-cell;
      height: 100%;
      border: 1px solid gray;
      text-align: center;
      vertical-align: middle;
    }
  </style>
</head>

<body>

  <div class="table">
    <div class="table-tr">
      <div class="table-td">
        <div class="sub-table">
          <div class="sub-table-tr">
            <div class="table-th" style="width: 40%;">省份／直辖市</div>
            <div class="table-th" style="width: 30%;">GDP(亿元)</div>
            <div class="table-th" style="width: 30%;">增长率</div>
          </div>
        </div>
      </div>
    </div>
    <div class="table-tr">
      <div class="table-td">
        <div class="sub-table">
          <div class="sub-table-tr">
            <div class="sub-table-td" style="width: 40%;">广东</div>
            <div class="sub-table-td" style="width: 30%;">72812</div>
            <div class="sub-table-td" style="width: 30%;">8.0%</div>
          </div>
        </div>
      </div>
    </div>
    <div class="table-tr">
      <div class="table-td">
        <div class="sub-table">
          <div class="sub-table-tr">
            <div class="sub-table-td" style="width: 40%;">河南</div>
            <div class="sub-table-td" style="width: 30%;">37010</div>
            <div class="sub-table-td" style="width: 30%;">8.3%</div>
          </div>
        </div>
      </div>
    </div>
    <div class="table-tr">
      <div class="table-td">
        <div class="sub-table">
          <div class="sub-table-tr">
            <div class="sub-table-td" style="width: 40%;">江苏</div>
            <div class="sub-table-td" style="width: 30%;">70116</div>
            <div class="sub-table-td" style="width: 30%;">8.5%</div>
          </div>
        </div>
      </div>
    </div>
    <div class="table-tr">
      <div class="table-td">
        <div class="sub-table">
          <div class="sub-table-tr">
            <div class="sub-table-td" style="width: 70%;">各省／直辖市GDP平均增长率</div>
            <div class="sub-table-td" style="width: 30%;">8.26%</div>
          </div>
        </div>
      </div>
    </div>
  </div>
</body>

</html>